Secure messaging apps are applications designed to protect the privacy of users' conversations. They use encryption technology to ensure that messages can only be read by the intended recipients, making it difficult for outsiders, including hackers and government agencies, to access the content. Popular examples of secure messaging apps include Signal, WhatsApp, and Telegram. These apps often offer additional features such as self-destructing messages, which automatically delete after a set time, and the ability to verify contacts to prevent impersonation. By prioritizing user privacy, secure messaging apps provide a safer alternative to traditional messaging platforms.